138260

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 301056

約数和(自身を除く): 162796

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 223, 310, 446, 620, 892, 1115, 2230, 4460, 6913, 13826, 27652, 34565, 69130, 138260]

約数ペア:

[(1, 138260), (2, 69130), (4, 34565), (5, 27652), (10, 13826), (20, 6913), (31, 4460), (62, 2230), (124, 1115), (155, 892), (223, 620), (310, 446)]